luau
moonscript
Our great sponsors
luau | moonscript | |
---|---|---|
64 | 35 | |
3,615 | 3,118 | |
2.7% | - | |
9.0 | 4.4 | |
about 1 hour ago | 6 months ago | |
C++ | Lua | |
MIT License | - |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
luau
-
Building a baseline JIT for Lua automatically
As far as I can tell, they aren't.
http://lua-users.org/wiki/SandBoxes
There is a lot of information there, but it doesn't handle resource exhaustion, execution time limits or give any guarantees. It does indicate that it's possible, and has a decent example of the most restrictive setup, which is a good start. But I would for example compare it with Luau's SECURITY.md.
From https://github.com/luau-lang/luau/blob/master/SECURITY.md:
> Luau provides a safe sandbox that scripts can not escape from, short of vulnerabilities in custom C functions exposed by the host. This includes the virtual machine and builtin libraries. Notably this currently does not include the work-in-progress native code generation facilities.
> Any source code can not result in memory safety errors or crashes during its compilation or execution. Violations of memory safety are considered vulnerabilities.
> Note that Luau does not provide termination guarantees - some code may exhaust CPU or RAM resources on the system during compilation or execution.
So, even luau will have trouble with untrusted code, but it specifies exactly what happens and so on. I think that's fair enough.
-
Pluto, a Modern Lua Dialect
Alternatively, Luau is a well-supported Lua variant with type checking and performance improvements, aimed more towards being a sandboxed embedded scripting environment.
https://luau-lang.org/
-
Buzz: A lightweight statically typed scripting language
If you need Lua but also type-safety, how about Luau [1] then?
[1] https://luau-lang.org/
-
Lua Criticism Is Unwarranted
I had the pleasure of working with Lua 5.1 back in the late noughties. For me it's replaced Tcl whenever I want something I can configure above a C library. At the time I used it I found it quite nice but I'll also not forget the hours I wasted tracking down nil table corruptions which could have easily been caught by a type checker.
I had some hope that Luau https://luau-lang.org or Teal https://github.com/teal-language/tl would make things better but with the following example
function foo(x: number): string
-
Ask HN: Looking for platforms, other than Roblox, that have adopted Luau
Looking at other replies here, I can see I wasn't the only one who didn't realize there is Lua and Luau. Luau is an extension of Lua: https://luau-lang.org/
> Luau is syntactically backwards-compatible with Lua 5.1 (code that is valid Lua 5.1 is also valid Luau); however, we have extended the language with a set of syntactical features that make the language more familiar and ergonomic.
-
Embeddable Common Lisp 23.9.9
Lua is usually the embedded language of choice. If you are focused on security, you could check out the Roblox fork, Luau (https://github.com/Roblox/luau) where the creators took extra care to lock down the language on what scripts could do.
-
Creating a simple sandboxed language
Luau - Lua variant by Roblox
-
The Warframe Lexicon for Updates
On a side note, I've heard that they recently switched from Lua to Roblox's own fork of Lua, Luau.
-
Lua: The Little Language That Could
https://www.youtube.com/results?search_query=luau+roblox&sp=...
Luau
https://github.com/Roblox/luau
Roblox wrote a superset of Roblox Lua which is way faster
-
Scripting Resources MegaThread
https://luau-lang.org/ - some documentation, and examples https://create.roblox.com/docs - documentation, tutorials, and examples https://www.youtube.com/user/AlvinBLOX - tutorials https://www.youtube.com/@TheDevKing/videos - tutorials https://www.lua.org/manual/5.1/ - not specific to Roblox, but Lua reference manual https://www.codecademy.com/learn/learn-lua - Lua on Codecademy
moonscript
-
Why Fennel?
Now I like lua, and think single pass is the way to go for interpreted, since you don't have the disadvantage of a slow compile time no matter how big your codebase gets, BUT its not great to write in. things like +=, ++, are not possible, which means the only solution is to transpile into it, which has led to some good languages like moonscript[0], teal[1] which offers static type checking, an absolute must as your codebase grows.
[0]: https://moonscript.org/
-
Forth: The programming language that writes itself: The Web Page
That can be very productive and clever, but be - and stay - aware that such polyglot solutions tend to be maintenance headaches in the longer run.
There is a really nice open source project out there that allows you to train your hearing and your sightreading, but it's written in the authors own language which in turn compiles to JavaScript and the headache to set up their toolchain is such that I haven't bothered fixing any of the bugs that I'm aware of (and there are plenty).
https://sightreading.training/
https://github.com/leafo/sightreading.training
It's written in a language called 'Moonscript':
https://github.com/leafo/moonscript
Which compiles to Lua. Which compiles to JS.
Madness. Nice madness, but still, it stopped me from being a contributor.
-
Lua: The Little Language That Could
RE: the cost of switching at this point, what about languages that compile to Lua? Like https://moonscript.org/. That would let you keep the legacy code, no?
-
Trying to make a website with Lapis
In the case of Lapis, it is actually written in Moonscript, which needs a few more things.
- Launch HN: Moonrepo (YC W23) – Open-source build system
- Using Lua with C++
-
Using other languages
There's also some languages made to compile straight to Lua: - MoonScript is the most popular Lua wrapper - it's built to be more Python-like, featuring indentation-based scopes, function calls without parentheses, lambda syntax, list comprehension, and much more. - Yuescript is a modern update to MoonScript that adds more features (I haven't used it myself, so I'm not entirely sure exactly how it differs from MS). - Teal is a version of Lua that adds static typing for better code standards.
-
Best Websites For Coders
A programmer-friendly language that compiles to Lua.
- data types in function definition
-
A MiniTron In 47 Lines
This is a sample code for learning, written in Moonscript for TIC-80:
What are some alternatives?
lua-languages - Languages that compile to Lua
Yuescript - A Moonscript dialect compiles to Lua.
LuaJIT - Mirror of the LuaJIT git repository
nelua-lang - Minimal, efficient, statically-typed and meta-programmable systems programming language heavily inspired by Lua, which compiles to C and native code.
moonsharp - An interpreter for the Lua language, written entirely in C# for the .NET, Mono, Xamarin and Unity3D platforms, including handy remote debugger facilities.
TypeScriptToLua - Typescript to lua transpiler. https://typescripttolua.github.io/
lua-language-server - A language server that offers Lua language support - programmed in Lua
TIC-80 - TIC-80 is a fantasy computer for making, playing and sharing tiny games.
tl - The compiler for Teal, a typed dialect of Lua
LuaJIT - Mirror of the LuaJIT git repository
rbxfpsunlocker - FPS Unlocker for Roblox
nvim-lspconfig - Quickstart configs for Nvim LSP